Puttygen rsa 4096
For increased security you can make an even larger key with the -b option. For example, for 4096 bits do:
ssh-keygen -t rsa -b 4096
The OSL recommends using RSA over DSA because DSA keys are required to be only 1024 bits.
Note
If you are creating this key for use with an OSL SSH account, copy and paste the public key into your ticket. If we didn’t ask you for a public key but you want one added to your account email it to support@osuosl.org, being sure to specify who you are and what project(s) you are associated with.